For Business
|
Warnings
Data Suite
Forensics
Advertising
Superior Accuracy™

When will the heat wave end in the East? Click for the forecast.

Posen, IL

Location

Location News Videos

Use Current Location

Recent

Posen

Illinois

No results found.

Try searching for a city, zip code or point of interest.

Create Your Account Unlock extended daily and hourly forecasts — all with your free account.

Have an account already? Log In

settings

Posen, IL Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

12 PM

87°

RealFeel® 101°

Very Hot

RealFeel Guide

Very Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

20%

Intermittent clouds

RealFeel Shade™93°

Heat Index96°

WindWSW 9 mph

Air QualityFair

Max UV Index8.1 (Very High)

Wind Gusts12 mph

Humidity65%

Indoor Humidity65% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling28300 ft

1 PM

89°

RealFeel® 102°

Very Hot

RealFeel Guide

Very Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

25%

Intermittent clouds

RealFeel Shade™94°

Heat Index98°

WindSW 9 mph

Air QualityFair

Max UV Index9.7 (Very High)

Wind Gusts14 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

87°

RealFeel® 99°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

53%

Mostly cloudy w/ t-storms

RealFeel Shade™94°

Heat Index102°

WindWSW 10 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts15 mph

Humidity79%

Indoor Humidity79% (Dangerously Humid)

Dew Point80° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover67%

Rain0.16 in

Visibility4 mi

Cloud Ceiling2000 ft

3 PM

86°

RealFeel® 97°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

49%

Intermittent clouds

RealFeel Shade™91°

Heat Index94°

WindWSW 10 mph

Air QualityFair

Max UV Index6.3 (High)

Wind Gusts16 mph

Humidity66%

Indoor Humidity66% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

85°

RealFeel® 94°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

40%

Intermittent clouds

RealFeel Shade™90°

Heat Index92°

WindWSW 10 mph

Air QualityFair

Max UV Index4.2 (Moderate)

Wind Gusts17 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

86°

RealFeel® 95°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

30%

Intermittent clouds

RealFeel Shade™91°

Heat Index94°

WindWSW 9 mph

Air QualityFair

Max UV Index3.0 (Moderate)

Wind Gusts14 mph

Humidity65%

Indoor Humidity65% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

85°

RealFeel® 93°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

30%

Intermittent clouds

RealFeel Shade™90°

Heat Index92°

WindSW 8 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts13 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

82°

RealFeel® 89°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

31%

Intermittent clouds

RealFeel Shade™87°

Heat Index88°

WindSW 7 mph

Air QualityFair

Max UV Index1.1 (Low)

Wind Gusts12 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

81°

RealFeel® 88°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

34%

Mostly cloudy

RealFeel Shade™88°

Heat Index87°

WindWNW 8 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts9 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover88%

Visibility10 mi

Cloud Ceiling28300 ft

9 PM

79°

RealFeel® 86°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

34%

Mostly cloudy

Heat Index83°

WindSE 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity84%

Indoor Humidity84% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling26600 ft

10 PM

77°

RealFeel® 83°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

37%

Mostly cloudy

WindSE 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity89%

Indoor Humidity89% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling25000 ft

11 PM

77°

RealFeel® 83°

Very Warm

RealFeel Guide

Very Warm

82° to 89°

Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.

47%

Intermittent clouds

WindSE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity89%

Indoor Humidity89% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover71%

Visibility10 mi

Cloud Ceiling21500 ft

Hourly Weather Forecast for Posen

AccuWeather's hourly forecast for Posen provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 87° with a RealFeel® of 101°, intermittent clouds with a 20% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Sunday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Fourth of July week furnace: Dangerous heat dome for 250 million

3 hours ago

Weather News

America 250 events are being canceled, reshaped as heat dome grips US

2 hours ago

Weather Forecasts

Heat furnace to flip from eastern to western U.S. next week

6 hours ago

Live: World Cup 2026 weather updates

LATEST ENTRY

World Cup faces heat, storm risk into the weekend

2 hours ago

Severe Weather

Thunderstorms to circle massive heat furnace into Fourth of July

6 hours ago

Featured Stories

Weather News

Texas Hill Country marks 1 year since deadly July 4 flood

1 hour ago

Weather News

What is the most American animal?

22 hours ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

3 days ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

2 days ago

Recreation

Girl survives rabid bat attack after receiving lifesaving treatment

23 hours ago

World North America United States Illinois Posen

Weather Near Posen:

Chicago, IL
Joliet, IL
Naperville, IL

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

Company

Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us

Products & Services

For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations

Apps & Downloads

iPhone App Android App See all Apps & Downloads

Subscription Services

AccuWeather Premium AccuWeather Professional

More

AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center

© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.

Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...